That's a very considerate and common concern for balcony gardeners in apartments or multi-unit buildings. We completely understand the worry about excess water dripping onto your downstairs neighbor's space. It's crucial for maintaining good relationships and avoiding damage.
To directly answer your question: Yes, many of our modern urban planter boxes are designed with integrated saucers or built-in drainage reservoirs. These are not the flimsy, separate trays you might be thinking of. Instead, they are a seamless part of the planter's design. The saucer sits beneath the main planting pot, hidden from view, and is designed to catch any excess water that drains through the soil after watering. This captured water is then either slowly absorbed back by the plant's roots over time or can be manually emptied if necessary.
This design is essential for responsible urban gardening. It prevents water from seeping directly onto your balcony floor and, more importantly, from dripping onto the balcony or property below. When selecting a planter, look for features like "integrated drip tray," "self-contained drainage system," or "built-in saucer." This ensures you can enjoy your greenery without the anxiety of causing a nuisance or water damage to your neighbors. It’s a simple feature that makes balcony gardening peaceful and community-friendly.